A steering system includes a controller. The controller is configured to: enter a turn mode; determine respective, different rotation speeds of steerable wheels to turn the vehicle and reach a defined second position from a first position; output respective rotation speed signals to drivers to rotate the respective wheels at the determined respective rotation speeds in the turn mode; and determine the vehicle has reached the defined second position based at least partially on the rotation speeds and responsively exit the turn mode.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The steering system of claim 1, further comprising a global positioning satellite system (GPS) operably coupled to the controller and configured to output a position signal corresponding to a position of the vehicle, the controller being configured to determine the vehicle has reached a defined first position based on a received position signal to enter the turn mode.
3. The steering system of claim 2, wherein the controller comprises a memory configured to store a map therein, the defined first position and the defined second position being defined in the map, the controller being configured to determine the first rotation speed and the second rotation speed based at least partially on a distance between the defined first position and the defined second position in the map.
4. The steering system of claim 3, wherein a boundary region is defined in the map, the controller being configured to determine the first rotation speed and the second rotation speed so the vehicle turns entirely within the boundary region to reach the defined second position from the defined first position.
5. The steering system of claim 2, wherein the controller is configured to not consider received position signals from the GPS system when determining the vehicle has reached the defined second position.
6. The steering system of claim 1, further comprising a first wheel movement sensor associated with the at least one first steerable wheel and a second wheel movement sensor associated with the at least one second steerable wheel, the first wheel movement sensor being configured to output first wheel movement signals corresponding to a first wheel movement of the at least one first steerable wheel and the second wheel movement sensor being configured to output second wheel movement signals corresponding to a second wheel movement of the at least one second steerable wheel, the controller being operably coupled to the first wheel movement sensor and the second wheel movement sensor.
7. The steering system of claim 6, wherein the controller is configured to determine the vehicle has reached the defined second position based on received first wheel movement signals and received second wheel movement signals.
9. The steering system of claim 6, wherein the controller is configured to determine a current heading of the vehicle based on a heading of the vehicle at the first position, received first wheel movement signals, and received second wheel movement signals.
11. The agricultural vehicle of claim 10, further comprising a global positioning satellite system (GPS) operably coupled to the controller and configured to output a position signal corresponding to a position of the vehicle, the controller being configured to determine the vehicle has reached a defined first position based on a received position signal to enter the turn mode.
12. The agricultural vehicle of claim 11, wherein the controller comprises a memory configured to store a map therein, the defined first position and the defined second position being defined in the map, the controller being configured to determine the first rotation speed and the second rotation speed based at least partially on a distance between the defined first position and the defined second position in the map.
13. The agricultural vehicle of claim 12, wherein a boundary region is defined in the map, the controller being configured to determine the first rotation speed and the second rotation speed so the agricultural vehicle turns entirely within the boundary region to reach the defined second position from the defined first position.
14. The agricultural vehicle of claim 13, wherein the map is a field map and the boundary region is a headlands of the field map.
15. The agricultural vehicle of claim 11, wherein the controller is configured to not consider received position signals from the GPS system when determining the vehicle has reached the defined second position.
16. The agricultural vehicle of claim 10, further comprising a first wheel movement sensor associated with the at least one first steerable wheel and a second wheel movement sensor associated with the at least one second steerable wheel, the first wheel movement sensor being configured to output first wheel movement signals corresponding to a first wheel movement of the at least one first steerable wheel and the second wheel movement sensor being configured to output second wheel movement signals corresponding to a second wheel movement of the at least one second steerable wheel, the controller being operably coupled to the first wheel movement sensor and the second wheel movement sensor.
17. The agricultural vehicle of claim 16, wherein the controller is configured to determine the agricultural vehicle has reached the defined second position based on received first wheel movement signals and received second wheel movement signals.
19. The agricultural vehicle of claim 16, wherein the controller is configured to determine a current heading of the agricultural vehicle based on a heading of the agricultural vehicle at the first position, received first wheel movement signals, and received second wheel movement signals.
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June 17, 2022
August 27, 2024
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